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operational ceiling
Fonte1
International Civil Aviation Organization. Manual on a 300 m (1 000 ft) Vertical Separation Minimum Between FL 290 and FL 410 Inclusive. 3. ed. Montreal, 2012. (Doc. 9574 AN/934).
Contexto
The selection of FL 290 as the vertical limit for the 300 m (1 000 ft) VSM was not so much an empirically-based decision but rather a function of the operational ceiling of the aircraft at that time.
Português
teto operacional